The floor is organised by game family, not by chance
Walk into a large casino and the layout looks chaotic at first: flashing banks of machines on one side, felt-covered tables on the other, a row of screens with a dealer on each one somewhere in between. The organisation is consistent. Casinos group games by how the outcome is produced and how the player interacts with it. Knowing those families tells you what you are looking at before you sit down, and what kind of decision, if any, the game asks you to make.
The broad split is between machine games, where the player activates a round and the device resolves it, and table games, where cards, dice, a wheel or a ball produce the result and a dealer or croupier runs the procedure. A third category, electronic table games, sits across both. A fourth, the social or home format, copies the equipment and the rules but removes the wagering layer entirely.
Machine games: slots and their variants
Slot machines are the largest category on most floors. The player chooses a stake, starts a spin, and the machine's random number generator determines where the reels stop. The defining concepts are the payline or ways-to-win format, the return to player percentage, and the volatility of the payout distribution.
Return to Player (RTP) is a theoretical percentage of total wagered money a game returns to players over a very large number of spins or hands. It is a long-run statistical average, not a per-session guarantee. Volatility describes how payouts are distributed over time: high volatility means rarer but larger payouts, low volatility means more frequent but smaller ones. Volatility does not change a game's RTP. A game can return the same theoretical percentage over millions of spins while paying it back in very different patterns.
Slot variants differ mainly in reel structure and how winning combinations form. Fixed-payline games require betting all lines; ways-to-win formats pay on adjacent-symbol combinations instead of fixed lines. Jackpots add another layer. Fixed jackpots pay a set amount; progressive jackpots grow from a share of qualifying wagers and reset after a win. Progressive contributions are typically taken out of the game's return, and some progressives require a maximum-stake bet to qualify. The information panel on the machine states the rules that apply to that specific title.
| Slot feature | What it changes | What it does not change |
|---|---|---|
| Volatility | Frequency and size of payouts | RTP |
| Payline format | How combinations are counted | RTP |
| Jackpot type | Prize structure and stake requirements | Base game payout pattern |
| Theme and presentation | Visuals, sound, pace | Underlying mathematics |
Table games: cards, dice, wheels and balls
Table games are the oldest layer of the casino, and they split cleanly by the equipment that drives them. Card games compare hands or totals. Dice games resolve from thrown dice. Wheel games resolve from a spinning disc and a ball. Each family has its own decision structure, and that is the main difference a player notices: some table games ask for choices after the first bet, others do not.
Blackjack is a comparing card game where the objective is a hand total closer to 21 than the dealer's without exceeding it. The player makes decisions after seeing the first cards, and published basic-strategy charts derive from the specific rule set in use, including deck count, dealer stand rules, and doubling and splitting rules. Change one rule and the correct play on a given hand can change.
Baccarat is a comparing card game between the player and banker hands where totals are taken modulo 10. The player's main decision is which side to back before the cards are dealt; the drawing rules then run automatically. Banker, player and tie bets carry different house edges, with the tie bet the highest. The game asks less of the player than blackjack and runs faster as a result.
Roulette is a wheel game. European wheels have 37 pockets with a single zero; American wheels have 38 with a single and double zero. The extra pocket increases the house edge on the American layout. The player bets on where the ball will land, and the range of bets runs from a single number to broad groups like red or black. Every bet on the same wheel resolves from the same spin, but different bets carry different payout multiples and different edges.
Craps is a dice game built around the pass line and come-out roll. Two six-sided dice produce 36 equally likely combinations, and the table offers a large menu of bets built on those combinations. Different bet types on the same table carry materially different house edges. The pass line is the structural centre of the game; the proposition bets in the middle of the layout are a different animal entirely.
| Game family | Equipment | Player decisions after the first bet | What the player is comparing or predicting |
|---|---|---|---|
| Blackjack | Cards | Hit, stand, double, split, surrender where offered | Hand total versus dealer total |
| Baccarat | Cards | None beyond the initial side choice | Player hand versus banker hand |
| Roulette | Wheel and ball | None after the spin begins | Where the ball lands |
| Craps | Dice | Which bets to add or remove between rolls | Dice combinations across a sequence of rolls |
Electronic table games and hybrids
Between the machine banks and the live tables sits a category that combines both. Electronic table games run the same rules as their felt counterparts but resolve them on a screen, often with a digital dealer and no physical cards or chips. Some versions are fully automated; others use a live dealer on a video feed with players betting through terminals.
The random number generator is the algorithm that determines game outcomes in the fully electronic versions. Independent testing laboratories are commonly used to certify RNG behaviour; certification covers game mechanics, not an operator's financial conduct. In live-dealer formats, the physical equipment replaces the RNG as the source of the outcome, but the betting interface and the account plumbing stay the same.
For the player, the practical differences are pace and minimums. Electronic tables typically run faster because there is no physical chip handling, and they often accept lower minimum bets than a staffed table. The rules that matter, the house edge on each bet and the payout schedule, are the same game mathematics either way. The game information panel or the table rules screen states the specific version in use.
How a casino account organises all of this
When the same games appear inside an online casino account rather than on a physical floor, the categories above become the navigation. The lobby usually groups games by family: slots, table games, live dealer, jackpots, and sometimes a separate section for new or featured titles. The cashier is a separate area of the same account, because the games and the money layer are distinct systems even though they sit behind one login.
A sportsbook product often sits inside the same account as the casino games. The two products share the wallet, the identity verification and the transaction history, but they are separate ledgers in practice. A bet placed on a sports event and a spin on a slot both draw from the same balance, yet they resolve through different systems and appear under different headings in the account history. The account menu is where the reader finds the switch between the two.
Finding a specific game inside a generic app layout is a matter of knowing which of these layers to look in. The search bar, where one exists, is the fastest route. Without one, the category filters are the next step: choose the game family, then the sub-type, then sort by name or provider. The cashier is usually reached from a deposit or wallet icon in the account header, not from inside a game. If a withdrawal option is missing, the most common structural reasons are that the account has not passed identity verification, that a bonus is still subject to its wagering requirement, or that the chosen payment method does not support payouts in that direction.
Crypto-settled casinos: same games, different settlement layer
A casino that settles in cryptocurrency runs the same game categories as a fiat one. Slots, blackjack, roulette, baccarat and craps do not change their mathematics because the deposit arrived on-chain. What changes is the money layer around them.
On-chain transfers are irreversible once confirmed, require the correct network to be selected, and settle according to network confirmation times and fees rather than the operator's banking hours. That has practical consequences. A deposit sent on the wrong network does not arrive in the account, and because the transfer is irreversible, the recovery path is different from a card chargeback. A withdrawal clears to the wallet address on file once the operator releases it, and the speed after release is set by the network, not by the casino's payment processor.
Some crypto-based games also use a provably fair scheme. Provably fair is a cryptographic method where a hashed server seed is published before play and revealed afterwards, letting a player verify that the outcome was not altered after their bet. It verifies individual round integrity; it is not a licence, an audit, or a guarantee of solvency. A fiat casino game does not typically offer this verification layer, because the outcome comes from a certified RNG or physical equipment rather than a published seed. The game categories themselves remain the same.
Home casino nights: the same equipment, no wagering layer
The same game families also appear in a social format where nothing of value is staked. A home casino night uses the equipment and the rules of the real games, but the chips are tokens with no cash value, the buy-in is a fixed amount that buys entertainment rather than a stake, and the prizes, if any, are set in advance and unrelated to the amount wagered.
The structure that makes this work is the removal of the payout layer. In a commercial casino, every bet carries a house edge, the mathematical advantage the operator holds on a given game, expressed as a percentage of each wager. House edge and RTP are complements: they sum to 100% for the same game. In a home game with no real stakes, that edge is irrelevant because nothing of value is being returned. What remains is the procedure: the dealing order, the betting rounds, the hand rankings, the wheel layout.
For the host, the practical decisions are the game selection, the chip denominations, the schedule and the house rules. A blackjack table needs a dealer who knows when to stand and when to hit; a roulette wheel needs a layout and a consistent payout schedule; a craps table needs someone who can run the come-out roll and settle the main bets. The rules are the same ones described above. Only the settlement changes, and that is the entire point of the format.
FAQ
What is the difference between a slot machine and a video poker machine?
Video poker is a card game on a machine format. The player is dealt five cards, chooses which to hold, and the draw replaces the rest. The payout table is published on the screen, and the player's hold decisions change the return. A slot machine has no such decision after the spin begins; the outcome is fixed by the random number generator and the player simply watches it resolve.
Are all table games played against the dealer?
Most are, but the structure differs. In blackjack, each player's hand is compared against the dealer's hand. In baccarat, the player is choosing which of two hands, player or banker, will win, and the dealer runs both. In craps, the shooter rolls the dice and the table bets on the outcome of the roll sequence; the dealer settles the bets but is not an opponent in the card-game sense. In poker-room formats, where offered, players compete against each other and the house takes a fee rather than a side of the bet.
Why do some casinos have the same game with different rules?
Because the rule set is a commercial and regulatory choice, not a fixed property of the game. Blackjack is the clearest example: the number of decks, whether the dealer stands or hits on a soft 17, and which doubling and splitting options are allowed all vary by table. Each variation changes the correct strategy and the house edge on the same nominal game. The table rules placard or the game information panel states the version in use, and that is the document to read before playing.
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This article is general information about how these mechanics work. It is not legal advice and not a recommendation to gamble or to use any particular operator. Availability and legality differ by jurisdiction — check the rules that apply where you are.